// operators/Assignment.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Assignment with objects is a bit tricky

class Tank {
    int level;
}

public class Assignment {
    public static void main(String[] args) {
        Tank t1 = new Tank();
        Tank t2 = new Tank();
        t1.level = 9;
        t2.level = 47;
        System.out.println("1: t1.level: " + t1.level +
                ", t2.level: " + t2.level);
        t1 = t2;
        System.out.println("2: t1.level: " + t1.level +
                ", t2.level: " + t2.level);
        t1.level = 27;
        System.out.println("3: t1.level: " + t1.level +
                ", t2.level: " + t2.level);
    }
}
/* Output:
1: t1.level: 9, t2.level: 47
2: t1.level: 47, t2.level: 47
3: t1.level: 27, t2.level: 27
*/
